J/AJ/159/255 Observation & radial velocity of WASP-150 & WASP-176 (Cooke+, 2020)
Two transiting hot Jupiters from the WASP Survey: WASP-150b and WASP-176b.
Cooke B.F., Pollacco D., Almleaky Y., Barkaoui K., Benkhaldoun Z.,
Blake J.A., Bouchy F., Boumis P., Brown D.J.A., Bruni I., Burdanov A.,
Cameron A.C., Chote P., Daassou A., D'ago G., Dalal S., Damasso M.,
Delrez L., Doyle A.P., Ducrot E., Gillon M., Hebrard G., Hellier C.,
Henning T., Jehin E., Kiefer F., King G.W., Liakos A., Lopez T.,
Mancini L., Mardling R., Maxted P.F.L., McCormac J., Murray C.,
Nielsen L.D., Osborn H., Palle E., Pepe F., Pozuelos F.J.,
Prieto-Arranz J., Queloz D., Schanche N., Segransan D., Smalley B.,
Southworth J., Thompson S., Turner O., Udry S., Velasco S., West R.,
Wheatley P., Alikakos J.
<Astron. J., 159, 255 (2020)>
=2020AJ....159..255C 2020AJ....159..255C
ADC_Keywords: Exoplanets; Stars, F-type; Spectra, optical; Photometry, VRI;
Radial velocities
Keywords: Exoplanet systems ; Radial velocity ; Exoplanet detection methods ;
Photometry
Abstract:
We report the discovery of two transiting exoplanets from the Wide
Angle Search for Planets (WASP) survey, WASP-150b and WASP-176b.
WASP-150b is an eccentric (e=0.38) hot Jupiter on a 5.6day orbit
around a V=12.03, F8 main-sequence host. The host star has a mass and
radius of 1.4M☉ and 1.7R☉ respectively. WASP-150b has a
mass and radius of 8.5MJ and 1.1RJ, leading to a large planetary
bulk density of 6.4ρJ. WASP-150b is found to be ∼3Gyr old, well
below its circularization timescale, supporting the eccentric nature
of the planet. WASP-176b is a hot Jupiter planet on a 3.9day orbit
around a V=12.01, F9 sub-giant host. The host star has a mass and
radius of 1.3M☉ and 1.9R☉. WASP-176b has a mass and radius of
0.86MJ and 1.5RJ, respectively, leading to a planetary bulk
density of 0.23ρJ.
Description:
The WASP project was split into north and south facilities with
telescopes located at the Isaac Newton Group at the Observatorio del
Roque de los Muchachos, La Palma, Spain and at the South African
Astronomical Observatory, Sutherland, Republic of South Africa
respectively.
For WASP-150, a total of 99892 photometric data points were taken
between 2004-May-14 and 2011-August-4. For WASP-176, a total of 23082
photometric data points were taken between 2004-May-26 and
2010-October-6.
SOPHIE is dedicated to high-precision RV measurements at the 1.93m
telescope of the Haute-Provence Observatory. We used its
high-efficiency mode with a resolving power of R=40000 and slow
readout mode. We obtained 22 observations of WASP-150 between 2014-May
and 2015-April.
High resolution spectroscopy for WASP-176 was performed with the
CORALIE spectrograph on the Swiss 1.2m telescope at La Silla
Observatory (Chile). In total we obtained 26 measurements between 2014
and 2018-July.
CAmara MEjorada Ligera del Observatorio del Teide (CAMELOT) is a
camera installed on the IAC80 telescope at the Observatorio del Teide,
Tenerife, Spain. CAMELOT contains a 2048x2048 back-illuminated e2v
CCD, providing a field of view of 10.4'x10.4', with a pixel scale of
0.304".
The DLR-MKIII is a camera fed by the Zeiss 1.23m Centro Astronomico
Hispano-Aleman (CAHA) telescope.
The Cassini 1.52m telescope at the Astronomical Observatory of Bologna
in Loiano (Italy) has a focal ratio of f/8, a focal length of 12m, and
is equipped with a back-illuminated CCD with 1300x1340pixels and a
pixel size of 20µm. A focal reducer makes the telescope an f/5, so
that its plate scale is 0.58"/pixel and the field of view is
13'x12.6'.
The Rapid Imaging Search for Exoplanets (RISE) is an optical camera,
installed on the 2m robotic Liverpool Telescope at the Observatorio
del Roque de los Muchachos, La Palma, Spain. The camera is a frame
transfer e2v CCD of 1024x1024 pixels, which has a field of view of
9.2'x9.2'.
The Telescopio Carlos Sanchez (TCS), is a 1.52m telescope installed at
the Observatorio del Teide. We used the Wide FastCam camera, a
1024x1024pixels EMCCD detector, coupled to an optical design that is
able to provide a field of view of ∼8'x8'.
The Near Infra-red Transiting ExoplanetS telescope (NITES) is located
on La Palma.
RISE-2 is mounted on the 2.3m telescope situated at Helmos observatory
in Greece. RISE-2 has a CCD size of 1Kx1K with a pixel scale of 0.51"
and a field of view of 9'x9'.
TRAPPIST-North is a 60cm robotic telescope installed in spring 2016 at
Oukaimeden Observatory in Morocco. TRAPPIST-North has an f/8
Ritchey-Chretien optical design. It is equipped with a
thermoelectrically cooled 2048x2048 deep-depletion Andor iKon-L CCD
camera that has a pixel size of 13.5µm, which translates into a
0.60"/pixel image scale and a field of view of 19.8'x19.8'.
SPECULOOS-Io, one of the four telescopes of the Search for habitable
Planets EClipsing ULtra-cOOl Stars (SPECULOOS)-South facility, which
is located at ESO Paranal Observatory (Chile). Each telescope is a
robotic Ritchey-Chretien (f/8) telescope of 1m diameter. They are
equipped with Andor iKon-L Peltier-cooled deeply depleted 2Kx2K CCD
cameras, with good sensitivities in the very near-infrared up to
1µm. The field of view of each telescope is 12'x12' and the pixel
scale is 0.35"/pixel.
Details on photometric observations of WASP-150 and WASP-176 with each
instrument are given in table 2 and 3.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
objects.dat 82 2 *System parameters from the MCMC analysis
table2.dat 97 7 Photometric Follow-up of WASP-150
table3.dat 97 6 Photometric Follow-up of WASP-176
fig1.dat 54 99892 *WASP data for WASP-150
fig2.dat 54 23082 *WASP data for WASP-176
fig3.dat 40 22 SOPHIE radial velocities of WASP-150
fig5.dat 46 26 CORALIE radial velocities of WASP-176
fig7a.dat 59 599 NITES follow-up observations of WASP-150
from 2014-09-11
fig7b.dat 59 14640 RISE follow-up observations of WASP-150
from 2015-05-23
fig7c.dat 59 230 IAC80 follow-up observations of WASP-150
from 2015-07-07
fig7d.dat 59 12141 RISE follow-up observations of WASP-150
from 2015-07-24
fig7e.dat 59 13500 TCS follow-up observations of WASP-150
from 2015-07-24
fig7f.dat 59 421 CAHA follow-up observations of WASP-150
from 2015-08-27
fig7g.dat 59 482 Cassini follow-up observations of WASP-150
from 2015-08-27
fig9a.dat 58 123 Cassini follow-up observations of WASP-176
from 2018-06-30
fig9b.dat 58 320 NITES follow-up observations of WASP-176
from 2018-08-04
fig9c.dat 58 676 NITES follow-up observations of WASP-176
from 2018-08-08
fig9d.dat 58 1929 RISE2 follow-up observations of WASP-176
from 2018-09-24
fig9e.dat 58 1127 SPECULOOS follow-up observations of WASP-176
from 2018-06-14
fig9f.dat 58 556 *TRAPPIST follow-up observations of WASP-176
from 2018-06-26
fig9g.dat 58 152 *TRAPPIST follow-up observations of WASP-176
from 2018-06-26
--------------------------------------------------------------------------------
Note on objects.dat : Positions are from table1 in the article, all other
parameters are from table7 in the article.
Note on fig1.dat : From Pollacco+, 2006PASP..118.1407P 2006PASP..118.1407P
Note on fig2.dat : From Pollacco+, 2006PASP..118.1407P 2006PASP..118.1407P
Note on fig9f.dat : Before meridian flip
Note on fig9g.dat : After meridian flip
--------------------------------------------------------------------------------
See also:
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)
J/A+A/523/A88 : A Jupiter-mass companion around HD 109246 (Boisse+, 2010)
J/A+A/517/L1 : Radial velocities of WASP-8b planet (Queloz+, 2010)
J/A+A/547/A61 : WASP78 and WASP79 RV and photometric data (Smalley+, 2012)
J/A+A/557/A30 : Transits of HAT-P-16 and WASP-21 (Ciceri+, 2013)
J/MNRAS/428/3164 : Spectroscopy of WASP planet host stars (Doyle+, 2013)
J/A+A/551/A73 : RV for WASP-54b, WASP-56b and WASP-57b (Faedi+, 2013)
J/A+A/552/A82 : WASP-64b and WASP-72b light curves (Gillon+, 2013)
J/MNRAS/429/859 : New companions to nearby low-mass stars (Jodar+, 2013)
J/MNRAS/444/776 : Transiting planets WASP-24, 25 and 26 (Southworth+, 2014)
J/A+A/575/A36 : BAGEMASS code (Maxted+, 2015)
J/MNRAS/465/3693 : 7 WASP-South transiting exoplanets (Hellier+, 2017)
J/A+A/599/A3 : WASP 127, 136 and 138 RV and light curves (Lam+, 2017)
J/AJ/157/43 : WASP-161b, WASP-163b and WASP-170b (Barkaoui+, 2019)
Byte-by-byte Description of file: objects.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Name Name of the star
10- 11 I2 h RAh [17/20] Hour of right ascension (J2000)
13- 14 I2 min RAm Minute of right ascension (J2000)
16- 20 F5.2 s RAs Second of right ascension (J2000)
22 A1 --- DE- [+] Sign of declination (J2000)
23- 24 I2 deg DEd [09/53] Degree of declination (J2000)
26- 27 I2 arcmin DEm Arcminute of declination (J2000)
29- 32 F4.1 arcsec DEs Arcsecond of declination (J2000)
34- 39 F6.4 d Per [3.9/5.7] Period
41- 43 F3.1 d e_Per [0] Negative error on Per
45- 47 F3.1 d E_Per [0] Positive error on Per
49- 54 F6.1 K Teff [5941/6218] Effective temperature
56- 59 F4.1 K e_Teff [45/79] Negative error on Teff
61- 64 F4.1 K E_Teff [49/77] Positive error on Teff
66- 70 F5.3 [-] [Fe/H] [0.15/0.17] Metallicity
72- 76 F5.3 [-] e_[Fe/H] [0.08/0.09] Negative error on [Fe/H]
78- 82 F5.3 [-] E_[Fe/H] [0.08/0.1] Positive error on [Fe/H]
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Inst Instrument used
16- 19 I4 yr Obs.Y Year of observation
21- 23 A3 "month" Obs.M Month of observation
25- 26 I2 d Obs.D Night of observation
28- 44 A17 --- Filt Filter used
46- 50 I5 --- Nobs Number of observations
52- 54 I3 s Cad Average cadence
56- 97 A42 --- Note Comment
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Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Inst Instrument used
16- 19 I4 yr Obs.Y Year of observation
21- 23 A3 "month" Obs.M Month of observation
25- 26 I2 d Obs.D Night of observation
28- 44 A17 --- Filt Filter used
46- 50 I5 --- Nobs [123/1929] Number of observations
52- 54 I3 s Cad [11/119] Average cadence
56- 97 A42 --- Note Comment
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Byte-by-byte Description of file: fig1.dat
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Bytes Format Units Label Explanations
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1- 13 F13.8 d HJD Heliocentric Julian Date, HJD-2450000
15- 32 F18.16 --- Flux Normalized Flux
34- 54 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig2.dat
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Bytes Format Units Label Explanations
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1- 13 F13.8 d HJD Heliocentric Julian Date, HJD-2450000
15- 32 F18.16 --- Flux Normalized Flux
34- 54 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig3.dat
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Bytes Format Units Label Explanations
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1- 13 F13.8 d HJD Heliocentric Julian Date, HJD-2450000
15- 21 F7.3 km/s RVel SOPHIE Radial Velocity
23- 27 F5.3 km/s e_RVel Uncertainty in RVel
29- 34 F6.3 km/s BIS Bisector span
36- 40 F5.3 km/s e_BIS Uncertainty in BIS
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Byte-by-byte Description of file: fig5.dat
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Bytes Format Units Label Explanations
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1- 13 F13.8 d HJD Heliocentric Julian Date, HJD-2450000
15- 21 F7.5 km/s RVel SOPHIE Radial Velocity
23- 29 F7.5 km/s e_RVel Uncertainty in RVel
31- 38 F8.5 km/s BIS Bisector span
40- 46 F7.5 km/s e_BIS Uncertainty in BIS
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Byte-by-byte Description of file: fig7a.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig7b.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig7c.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig7d.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig7e.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig7f.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig7g.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Heliocentric Julian Date, HJD-2450000
20- 37 F18.16 --- Flux Normalized Flux
39- 59 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9a.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9b.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9c.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9d.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9e.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9f.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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Byte-by-byte Description of file: fig9g.dat
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Bytes Format Units Label Explanations
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1- 17 F17.12 d HJD Heliocentric Julian Date, HJD-2450000
19- 36 F18.16 --- Flux Normalized Flux
38- 58 F21.19 --- e_Flux Flux error
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 26-Aug-2020